Read Galatians 3 today.

Paul makes it very clear in this chapter that the important thing in our relationship with God is faith.
When it comes down to it, we all live by faith. One of my examples for this is sitting in a chair. When we sit down, we are putting our belief that the chair is capable of bearing our weight into action. We do not know whether or not it will hold us, but the act of sitting down is when we place our trust, our faith, in it. In practical terms, an act of faith occurs any time we put what we say we believe into action.
The question is not whether or not we live by faith, but in what or whom we place our faith. Is it in our ability to make ourselves good enough to be worthy of God’s love by virtue of having obeyed the law? Is it in a belief system that assumes we are the center of the universe and can (and should) do whatever we want? Or is it in Jesus Christ?
My faith is in Jesus Christ, who loved me before I loved Him, who died for me while I was still a sinner, and who was raised from the dead!
Galatians 3:6-7, 26 NLT
In the same way, “Abraham believed God, and God counted him as righteous because of his faith.” [7] The real children of Abraham, then, are those who put their faith in God.
[26] For you are all children of God through faith in Christ Jesus.
Hebrews 11:6 NLT
And it is impossible to please God without faith. Anyone who wants to come to him must believe that God exists and that he rewards those who sincerely seek him.